https://screenrant.com/tim-burton-penguin-joker-batman-returns-sympathy-trick
Tim_Burton certainly provided his own take on the Batman world.
https://en.wikipedia.org/wiki/Batman_(1989_film)#Development
https://screenrant.com/beetlejuice-easter-egg-burton-keaton-batman-teamup An unoficial Beetlejuice and Batman connection.
https://en.wikipedia.org/wiki/Batman_Returns#Plot
https://thedigitallabyrinth.blogspot.com/search?q=Michael+Keaton
